1368307688 has 24 divisors (see below), whose sum is σ = 2820016290. Its totient is φ = 621957600.

The previous prime is 1368307673. The next prime is 1368307711. The reversal of 1368307688 is 8867038631.

It can be written as a sum of positive squares in only one way, i.e., 1073086564 + 295221124 = 32758^2 + 17182^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 705803 + ... + 707738.

Almost surely, 2^1368307688 is an apocalyptic number.

It is an amenable number.

1368307688 is an abundant number, since it is smaller than the sum of its proper divisors (1451708602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1368307688 is a wasteful number, since it uses less digits than its factorization.

1368307688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413569 (or 1413554 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 1368307688 is about 36990.6432493408. The cubic root of 1368307688 is about 1110.1830415347.

The spelling of 1368307688 in words is "one billion, three hundred sixty-eight million, three hundred seven thousand, six hundred eighty-eight".